View Compilation Error

0_0_16799837_26202.c: In function 'main':
0_0_16799837_26202.c:67:1: error: expected expression before '/' token
 //printf("%d\n",r);
 ^
0_0_16799837_26202.c: At top level:
0_0_16799837_26202.c:78:1: error: expected identifier or '(' before '/' token
 //正确  素数环
 ^
0_0_16799837_26202.c:78:1: error: stray '\325' in program
0_0_16799837_26202.c:78:1: error: stray '\375' in program
0_0_16799837_26202.c:78:1: error: stray '\310' in program
0_0_16799837_26202.c:78:1: error: stray '\267' in program
0_0_16799837_26202.c:78:1: error: stray '\313' in program
0_0_16799837_26202.c:78:1: error: stray '\330' in program
0_0_16799837_26202.c:78:1: error: stray '\312' in program
0_0_16799837_26202.c:78:1: error: stray '\375' in program
0_0_16799837_26202.c:78:1: error: stray '\273' in program
0_0_16799837_26202.c:78:1: error: stray '\267' in program